Three-dimensional Isotropic Droplets in Rydberg-dressed Bose Gases
Abstract
We predict a scheme for the creation of isotropic three-dimensional droplets in Rydbeg-dressed Bose gases, which contain both repulsive contact interactions and attractive van der Waals interactions causing the quantum fluctuation effect non-negligible. We present detailed beyond mean-field calculations with Lee-Huang-Yang correction and demonstrate the existence of isotropic droplets under realistic experimental conditions. Stable droplets possess flat-top density distribution, and their chemical potentials decrease with the particle number expansion towarding a critical value. We distinguish droplets from bright solitons through peak density, width of condensate and quantum depletion calculations. We summarize a phase diagram of realizing droplets, and subsequently highlight the stability of droplets by real time evolution as well as collisions. Our work provides a novel platform for investigating excitation spectrum and superfluid nature of droplets.
Keywords
Cite
@article{arxiv.2305.17309,
title = {Three-dimensional Isotropic Droplets in Rydberg-dressed Bose Gases},
author = {Hao Zhu and Yong-Yao Li and Wen-Kai Bai and Yan-Mei Yu and Lin Zhuang and Wu-Ming Liu},
journal= {arXiv preprint arXiv:2305.17309},
year = {2023}
}